Composition including chloroprene polymer, molded body, and method for producing molded body
The present invention relates to a composition including a chloroprene polymer, a molded body, and a method for producing a molded body, and the composition includes a chloroprene polymer (A), and a thiol compound (B) having 2 mercapto groups in a molecule. An amount of the thiol compound (B) is 1.5 to 20 parts by mass per 100 parts by mass of the chloroprene polymer (A).
1 . A composition comprising a chloroprene polymer (A), a thiol compound (B) having 2 mercapto groups in a molecule, and magnesium oxide, wherein the amount of the thiol compound (B) is 1.5 parts by mass or more and 5.0 parts by mass or less per 100 parts by mass of the chloroprene polymer (A), wherein
the thiol compound (B) has 2 partial structures represented by CH 3 (SH)CHCH 2 COOCH 2 — in a molecule.
2 . The composition according to claim 1 , wherein the chloroprene polymer (A) is at least one selected from a homopolymer of chloroprene and a copolymer of chloroprene and an additional monomer copolymerizable with the chloroprene.
3 . The composition according to claim 2 , wherein the proportion of the additional monomer in the monomers used for forming the chloroprene polymer (A) is 30 mass % or less.
4 . The composition according to claim 1 , wherein the thiol compound (B) is 1,4-bis(3-mercaptobutyryloxy)butane.
5 . The composition according to claim 1 , further comprising a metal oxide other than magnesium oxide.
6 . The composition according to claim 5 , wherein the metal oxide is zinc oxide.
7 . A method for producing a molded body comprising molding the composition according to claim 1 , and heating.
8 . A molded body formed by using the composition according to claim 1 .